If
the pond is circular, the distance circumference of the pond (distance around
the shoreline) should be measured in
feet.
That number
should
be
multiplied by
itself and then divided by 547,390. If the pond's circumference
is 800 feet, the equation would be:

800 feet x 800 feet = 640,000
640,000/547,390 = 1.17 acres

If
the pond is triangular, the base and the height should be measured. Multiply
those two numbers, take half of the resulting amount, and divide by 43,560.
If the triangle is 300 feet at the base and 500 feet high, the equation would
be:

Calculating Average Depth

Make a series of soundings by dropping a weighted
line to the bottom in straight rows across the pond 30 to 50 feet apart.
Add the depth measurements together and divide by the number of soundings.
Begin
and end each row with the zero measurement at the shoreline and include these
in the total number of soundings made.

Regulatory Requirements

Enforcement of herbicide and pesticide laws is the
responsibility of the Texas Department of Agriculture (TDA). Before applying
herbicides, check with a
TDA office to ensure compliance with federal and state rules. Even if the
active ingredient is the same, it is illegal to use a product that is not
registered for aquatic use. Use of herbicides containing 2,4-D requires
a pesticide applicator’s license.

“Aquatic Vegetation Management in Texas: A Guidance Document” outlines
procedures for developing and submitting treatment proposals for public water.
This document is available in PDF format. To download, use the
link on this page. Questions and treatment proposals may be addressed to: